* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: #E6EBF2;
  color: #243447;
  line-height: 1.75;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: #F5F7FB;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}

.header-inner {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.logo,
.footer-logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
}

.logo img {
  max-height: 52px;
  width: auto;
  display: block;
}

.footer-logo img {
  max-height: 48px;
  width: auto;
}

.nav-wrap {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  white-space: nowrap;
  flex-wrap: nowrap;
}

.nav a,
.nav-trigger {
  color: #4E5F7A;
  font-size: 15px;
  font-weight: 700;
  padding: 22px 0 18px;
  position: relative;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

.nav a.active,
.nav a:hover,
.nav-trigger.active,
.nav-trigger:hover {
  color: #289CFF;
}

.nav a.active::after,
.nav-trigger.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 3px;
  border-radius: 999px;
  background: #289CFF;
}

.header-action {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 22px;
  background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
  color: #FFFFFF !important;
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(36,155,255,0.25);
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.main-btn:hover {
  background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%);
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(36,155,255,0.30);
}

.dropdown,
.more-dropdown {
  position: relative;
}

.dropdown-menu,
.more-menu {
  position: absolute;
  top: 100%;
  left: -18px;
  min-width: 188px;
  background: #FFFFFF;
  border: 1px solid rgba(40,156,255,0.12);
  border-radius: 14px;
  box-shadow: 0 18px 38px rgba(56,92,138,0.16);
  z-index: 10000;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .18s ease;
}

.dropdown:hover .dropdown-menu,
.dropdown.open .dropdown-menu,
.more-dropdown:hover .more-menu,
.more-dropdown.open .more-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a,
.more-menu a {
  display: block;
  padding: 10px 12px;
  color: #4E5F7A;
  white-space: nowrap;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
}

.dropdown-menu a:hover,
.more-menu a:hover,
.dropdown-menu a.active,
.more-menu a.active {
  color: #289CFF;
  background: rgba(40,156,255,0.08);
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(56,92,138,0.12);
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: #4E5F7A;
  position: relative;
}

.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: #4E5F7A;
}

.mobile-menu-btn span::before { top: -7px; }
.mobile-menu-btn span::after { top: 7px; }

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(36,52,71,0.38);
  z-index: 10001;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(86vw, 320px);
  height: 100vh;
  background: #FFFFFF;
  z-index: 10002;
  transform: translateX(-105%);
  transition: transform .25s ease;
  box-shadow: 16px 0 40px rgba(36,52,71,0.18);
  overflow-y: auto;
}

body.drawer-open .drawer-mask {
  opacity: 1;
  visibility: visible;
}

body.drawer-open .mobile-drawer {
  transform: translateX(0);
}

body.drawer-open {
  overflow: hidden;
}

.drawer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px;
  border-bottom: 1px solid rgba(40,156,255,0.12);
}

.drawer-top img {
  max-height: 46px;
  width: auto;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: #EEF2F7;
  color: #4E5F7A;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.drawer-nav {
  padding: 12px 14px 24px;
}

.drawer-nav a {
  display: block;
  padding: 13px 14px;
  color: #4E5F7A;
  font-weight: 700;
  border-radius: 12px;
}

.drawer-nav a:hover,
.drawer-nav a.active {
  color: #289CFF;
  background: rgba(40,156,255,0.08);
}

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

main {
  padding-bottom: 56px;
}

.banner-slider {
  width: min(1200px, calc(100% - 32px));
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #FFFFFF;
  box-shadow: 0 18px 40px rgba(56,92,138,0.12);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.slider-track {
  display: flex;
  transition: transform .5s ease;
  height: clamp(210px, 38vw, 470px);
}

.slide {
  min-width: 100%;
  height: 100%;
  background: #FFFFFF;
}

.banner-slider img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #FFFFFF;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
  display: none !important;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.88);
  color: #289CFF;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(56,92,138,0.16);
}

.slider-arrow.prev { left: 18px; }
.slider-arrow.next { right: 18px; }

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

.slider-dots button {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 0;
  background: rgba(78,95,122,0.35);
  cursor: pointer;
  padding: 0;
}

.slider-dots button.active {
  width: 24px;
  background: #289CFF;
}

.section {
  margin: 34px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.kicker {
  color: #289CFF;
  font-weight: 800;
  letter-spacing: .08em;
  font-size: 14px;
  margin: 0 0 6px;
}

h1,
h2,
h3,
.section-title {
  color: #289CFF;
  margin-top: 0;
  line-height: 1.25;
}

h1 {
  font-size: clamp(30px, 5vw, 52px);
  margin-bottom: 18px;
}

h2,
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  margin-bottom: 10px;
}

h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

p {
  margin: 0 0 14px;
}

.lead {
  color: #243447;
  font-size: 17px;
}

.muted {
  color: #66788A;
}

.note {
  color: #8A9AAF;
  font-size: 14px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.hero-panel {
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(40,156,255,0.16);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  border-radius: 22px;
}

.hero-panel {
  margin: 30px 0 28px;
  padding: clamp(24px, 4vw, 46px);
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: 28px;
  align-items: center;
  overflow: hidden;
}

.hero-panel.no-img {
  grid-template-columns: 1fr;
}

.hero-panel .hero-media {
  background: #F5F7FB;
  border-radius: 18px;
  padding: 12px;
  border: 1px solid rgba(40,156,255,0.12);
}

.hero-panel .hero-media img,
.content-img,
.zone-card img,
.app-section img,
.media-card img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 16px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.text-link {
  color: #289CFF;
  font-weight: 800;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card,
.zone-card,
.info-card,
.review-card,
.faq-item {
  padding: 22px;
}

.card-number,
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(40,156,255,0.10);
  color: #289CFF;
  font-weight: 900;
  margin-bottom: 12px;
}

.split {
  display: grid;
  grid-template-columns: .96fr 1.04fr;
  gap: 22px;
  align-items: center;
}

.panel {
  background: #EEF2F7;
  border-radius: 24px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(40,156,255,0.12);
}

.white-panel {
  background: #FFFFFF;
}

.media-card {
  background: #FFFFFF;
  border-radius: 22px;
  padding: 12px;
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
  border: 1px solid rgba(40,156,255,0.16);
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.72);
  color: #243447;
  border: 1px solid rgba(40,156,255,0.12);
}

.check-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: #243447;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #289CFF;
  box-shadow: 0 0 0 5px rgba(40,156,255,0.10);
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item h3 {
  margin-bottom: 8px;
}

.review-card p {
  color: #243447;
}

.review-name {
  color: #66788A;
  font-weight: 800;
  margin-top: 12px;
}

.notice-strip {
  background: #DDE4EE;
  border-radius: 22px;
  padding: 22px;
  border: 1px solid rgba(40,156,255,0.12);
}

.site-footer {
  background: #243447;
  color: #EAF3FF;
  padding: 48px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .7fr .7fr 1fr;
  gap: 26px;
}

.site-footer h3 {
  color: #FFFFFF;
  font-size: 18px;
}

.site-footer p,
.site-footer a,
.footer-bottom {
  color: #EAF3FF;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(234,243,255,0.16);
  margin-top: 28px;
  padding-top: 18px;
  font-size: 14px;
}

@media (max-width: 1080px) {
  .nav { gap: 14px; }
  .nav a,
  .nav-trigger { font-size: 14px; }
  .header-inner { gap: 16px; }
}

@media (max-width: 920px) {
  .header-inner {
    min-height: 66px;
    width: min(100% - 24px, 1200px);
    gap: 10px;
  }
  .mobile-menu-btn { display: inline-flex; }
  .nav-wrap { display: none; }
  .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .logo img { max-height: 44px; }
  .main-btn { min-height: 38px; padding: 0 16px; }
  .header-action { margin-left: auto; }
  .hero-panel,
  .split,
  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    display: block;
  }
  .banner-slider {
    margin-top: 20px;
    border-radius: 16px;
  }
  .slider-track {
    height: clamp(180px, 54vw, 310px);
  }
  .slider-arrow {
    width: 36px;
    height: 36px;
    font-size: 24px;
  }
  .slider-arrow.prev { left: 10px; }
  .slider-arrow.next { right: 10px; }
}

@media (max-width: 520px) {
  .container,
  .banner-slider {
    width: calc(100% - 22px);
  }
  .card,
  .zone-card,
  .info-card,
  .review-card,
  .faq-item,
  .notice-strip {
    padding: 18px;
    border-radius: 18px;
  }
  .hero-panel {
    padding: 22px;
    border-radius: 18px;
  }
  h1 { font-size: 30px; }
  .header-register {
    min-width: 70px;
  }
}